<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="./vue.js"></script>
</head>
<body>
    <div id="root">
        <div>
            <input v-model="inputValue">
            <button @click="handleSubmit">提交</button>
        </div>
        <ul>
            <li v-for="(item,idx) of list" :key="idx">{{item}}</li> 
        </ul>
    </div>

    <script>

        new Vue({
            el:"#root",
            data: {
                inputValue: "你好",
                list:[]
            },
            methods:{
                handleSubmit() {
                    this.list.push(this.inputValue)
                    this.inputValue = ''
                }
            }
        })
    </script>
</body>
</html>